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题库 / Prep2007E1-SC-14
Having finally reached a tentative labor agreement with its company's pilots, it must now be determined by the airline's board of directors how the airline can both increase profits and compete more effectively for customers than they did in the past.
it must now be determined by the airline's board of directors how the airline can both increase profits and compete more effectively for customers than they did in the past
it must now be determined by the airline's board of directors how the airline can both increase profits and must compete more effectively than in the past for customers
the airline's board of directors must now determine both how to make the airline increase profits and compete more effectively for customers than they did in the past
the airline's board of directors must now determine how the airline can both increase profits and compete more effectively for customers than it did in the past
the airline's board of directors must now determine how the airline can both increase profits and also how to make it compete more effectively than in the past for customers
having reached的主语是the airline's board,A,B的it从语法上指代agreement,不能作为having reached的逻辑主语，所以A,B错
C，how to make..., to make 的动作发出者不明, both...and...不平行
E, both...and also不平行
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